21378648

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{271}}^1$

素因数の和:472

約数の個数: 64

約数和(自身を含む): 56793600

約数和(自身を除く): 35414952

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 173, 228, 271, 346, 456, 519, 542, 692, 813, 1038, 1084, 1384, 1626, 2076, 2168, 3252, 3287, 4152, 5149, 6504, 6574, 9861, 10298, 13148, 15447, 19722, 20596, 26296, 30894, 39444, 41192, 46883, 61788, 78888, 93766, 123576, 140649, 187532, 281298, 375064, 562596, 890777, 1125192, 1781554, 2672331, 3563108, 5344662, 7126216, 10689324, 21378648]

約数ペア:

[(1, 21378648), (2, 10689324), (3, 7126216), (4, 5344662), (6, 3563108), (8, 2672331), (12, 1781554), (19, 1125192), (24, 890777), (38, 562596), (57, 375064), (76, 281298), (114, 187532), (152, 140649), (173, 123576), (228, 93766), (271, 78888), (346, 61788), (456, 46883), (519, 41192), (542, 39444), (692, 30894), (813, 26296), (1038, 20596), (1084, 19722), (1384, 15447), (1626, 13148), (2076, 10298), (2168, 9861), (3252, 6574), (3287, 6504), (4152, 5149)]